EP0036925B2 - Verfahren zum Herstellen eines Schaumstoffkörpers, insbesondere Armaturentafel für Kraftfahrzeuge - Google Patents

Verfahren zum Herstellen eines Schaumstoffkörpers, insbesondere Armaturentafel für Kraftfahrzeuge Download PDF

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Publication number
EP0036925B2
EP0036925B2 EP81100644A EP81100644A EP0036925B2 EP 0036925 B2 EP0036925 B2 EP 0036925B2 EP 81100644 A EP81100644 A EP 81100644A EP 81100644 A EP81100644 A EP 81100644A EP 0036925 B2 EP0036925 B2 EP 0036925B2
Authority
EP
European Patent Office
Prior art keywords
trestle
portions
openings
plastics body
skin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81100644A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0036925A1 (de
EP0036925B1 (de
Inventor
Helmut Ing.Grad. Henne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Controls Interiors GmbH and Co KG
Original Assignee
Gebrueder Happich GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6098599&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0036925(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gebrueder Happich GmbH filed Critical Gebrueder Happich GmbH
Publication of EP0036925A1 publication Critical patent/EP0036925A1/de
Application granted granted Critical
Publication of EP0036925B1 publication Critical patent/EP0036925B1/de
Publication of EP0036925B2 publication Critical patent/EP0036925B2/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • B60R21/045—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings associated with the instrument panel or dashboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K37/00—Dashboards
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23943—Flock surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249955—Void-containing component partially impregnated with adjacent component
    • Y10T428/249958—Void-containing component is synthetic resin or natural rubbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249981—Plural void-containing components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
    • Y10T428/249988—Of about the same composition as, and adjacent to, the void-containing component
    • Y10T428/249989—Integrally formed skin

Definitions

  • the invention relates to a foam body, which is either surrounded by its own skin or by a skin formed from a film or from liquid media in the manufacturing mold with a load-bearing structure, which has openings in large areas and striving for a flat formation of molded parts such as e.g. B. a scraper, an edging strip or the like., In particular a dashboard for motor vehicles.
  • a foam body which is either surrounded by its own skin or by a skin formed from a film or from liquid media in the manufacturing mold with a load-bearing structure, which has openings in large areas and striving for a flat formation of molded parts such as e.g. B. a scraper, an edging strip or the like., In particular a dashboard for motor vehicles.
  • DE-AS 2 854 544 describes a process for a fiber-reinforced molded foam part, which is only aimed at solving the difficulty of achieving the strength values of the molded foam part with relatively little feed material, so that even large-sized parts with sufficient strength can be produced.
  • the fact that the difficulties are great and the solutions given are complicated is due to the prior art reproduced in this document. remove.
  • this solution can also only meet a few requirements and that the strength, but in particular the dimensional stability and the general stability, such as load-bearing capacity, can only be met if the requirements are low.
  • a foam molded part on the other hand, always has higher consumption values when the reinforcement already has the required values.
  • Such a molded foam part is shown in DE-OS 2 408 777. It is a motor vehicle instrument panel with a sheet metal insert. The sheet metal insert is formed over the entire surface, so that the necessary load-bearing capacity can be given to it from the material and the special formations, which forms the basis for the further requirements specified above.
  • DE-B-2 656 965 shows how to use a wire mesh as a supporting framework for a dashboard.
  • a framework consists of a large number of wire sections which have to be assembled and generally connected to one another by welding.
  • it should also be at least extremely difficult to provide areas of different dimensional stability.
  • the scaffold for the foam body to be formed consists of hard, dimensionally stable metal scaffolding parts in a planar division and area-by-area arrangement, the gaps formed from the area-by-area arrangement are at least largely and essentially bridged over the entire area with soft, in particular area-compliant scaffold parts ,
  • the openings of the foam body are kept free from both types of scaffolding.
  • the resilient parts of the scaffolding are nonwovens or mats with a textile bond, such as woven or knitted fabrics.
  • a molded foam part In practice, it can be assumed that a molded foam part, at least a larger one, must perform different tasks in certain areas. On the one hand, these are, for example in the case of an instrument panel, solid, non-compliant and largely load-bearing areas, in which resistance to tearing or pulling out is also very important. Experience shows that these areas are always in the minority and only limited to small areas. For these few and small areas, sheet metal would then have to be used, the weight of which, taken as a whole, is not particularly important. Dimensionally stable scaffolding parts cannot, of course, be produced exclusively from sheet metal, Plastic bodies can also be hard and dimensionally stable, such as injection-molded, blow-molded or laid-on bodies.
  • materials that are already known for this purpose can be used, in particular glass fiber structures will be used, the binding of which will be intended, namely knitted fabrics for molded parts that are particularly strong in the third dimension, woven fabrics for the different areas or nonwovens for flat areas.
  • Round openings or those with partially curved edges can be omitted particularly expediently according to the idea of the invention, namely they can be folded down with a strip in a knitted binding without forming wrinkles.
  • Another advantage is the fact that the scaffolding is built up in sections, because the overlays are always strut-shaped and thus form a scaffold reinforcement.
  • the scaffolding according to the invention is always constructed in or on a corresponding form, through which it is easily possible to insert the parts of the scaffolding individually and then to foam them around.
  • the dimensionally stable and the resilient framework parts are at least partially and / or partially connected to one another. For this purpose, it is left open whether all or part of the framework parts are connected beforehand, that is to say before insertion into the mold, or whether the connection is made after the correct placement in the mold.
  • the individual scaffolding parts can have, in addition to their shape serving to reinforce the foam part, further physical configurations, such as openings, lugs arranged at the edges, indentations or cams or tabs flared out of the general surface, which then expediently serve as adjustment stops with the production form and / or cooperate with separate systems or stops associated with the form of production.
  • the foam body has no separate outer skin and the closed surface is unprocessed or upgraded, for example by applying a liquid mass which forms a skin or is provided with flocking.
  • a liquid mass which forms a skin or is provided with flocking.
  • one will provide the visible side of the foam body with a film, either one that already has the final shape of the foam part or one that is formed in the mold, the openings of the foam body being at least partially covered with the film that forms the skin , the skin protruding deeply into the openings through a fold, such that the wall of the fold projecting from the surface is a stop for limiting the position of the frame.
  • parts of the skin that are later removed are used to make stops for the correct location of parts of the framework.
  • the scaffold ends at least in some areas at a distance (approx. 2 mm or more) from the circumferential edges of the scaffold and / or the edges of the openings in the foam body.
  • Manufacturing technology because it is easier to neglect the congruent edges of openings and reinforcement, application technology, because it is often useful to make the openings for receiving instruments, nozzles or the like.
  • Elastic so that an adjustment easier and a connection more convenient , for example, a clip connection can be made.
  • the dashboard 1 consists of many scaffolding parts still to be listed, of which the hard-set parts, generally 2, and the soft-set parts 3.
  • hard-set scaffolding parts 2 are essentially a frame 2a and an edge strip 2b. While it is partially left open whether the scaffolding parts 2 and 3 are only abutting against one another or are separated from one another by a small gap, the frame 2a lying at the bottom in the viewing direction shows a partial overlap with soft scaffolding parts 3.
  • the edge strip 2b is full-surface with a soft scaffolding part 3 covered.
  • a scoop 4 which is intended for the instrument holder, shows in its lateral area a duplication of soft scaffold parts 3.
  • the dashboard 1 In the central area of the dashboard 1 it is shown in dash-dot lines how scaffold parts 3 encompass an opening 5 in appropriately smaller and simply shaped sections. It can be seen that longitudinal or transverse pieces of scaffolding parts 2 and 3 are used for this purpose, which end approximately at the same edge as the edges of the opening 5 and are matched in width so that they meet the edges of the dashboard 1 or other shapes how the scoop 4 ends.
  • the dashboard 1 shows fasteners 6 which are inserted in a known manner from individual parts, or which are parts of the foam itself.
  • Fig. 2 shows a section of a dashboard 1 with an opening 5a for a fastener 6a, which can be both recessed and introduced later.
  • 4 and 5 show exemplary embodiments of fixed connections between the hard-set scaffold part 2 and the soft-set scaffold part 3.
  • a scaffold part 2 made of sheet metal, in which a tab cut free on three sides against an edge area of the scaffold part 2 is bent and a scaffold part 3 is clamped between them.
  • 4 and 5 materials other than sheet metal can also be used for the scaffold part 2.
  • 4 shows a connection of the scaffolding parts 2 and 3 by means of a further component, here a rivet.
  • 5 is an insertion of the scaffold part 3 into a U-shaped channel of the scaffold part 2, a certain press fit being possible.
  • Fig. 6 shows a preformed film 8, which is formed in the area of a breakthrough 5 or 5a not shown fully offset over a fold 9 inwards.
  • the fold 9 forms, as can be seen, a stop for a scaffold part 3, which results in an exact placement of such a scaffold part, it can also be a scaffold part 2, without further training.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
EP81100644A 1980-03-28 1981-01-29 Verfahren zum Herstellen eines Schaumstoffkörpers, insbesondere Armaturentafel für Kraftfahrzeuge Expired EP0036925B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3012007 1980-03-28
DE19803012007 DE3012007A1 (de) 1980-03-28 1980-03-28 Schaumstoffkoerper, insbesondere armaturentafel fuer kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP0036925A1 EP0036925A1 (de) 1981-10-07
EP0036925B1 EP0036925B1 (de) 1983-05-11
EP0036925B2 true EP0036925B2 (de) 1989-01-11

Family

ID=6098599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100644A Expired EP0036925B2 (de) 1980-03-28 1981-01-29 Verfahren zum Herstellen eines Schaumstoffkörpers, insbesondere Armaturentafel für Kraftfahrzeuge

Country Status (5)

Country Link
US (1) US4455338A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0036925B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS56150519A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3012007A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES257193Y (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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* Cited by examiner, † Cited by third party
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US4455338A (en) 1984-06-19
JPS6410336B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-02-21
EP0036925A1 (de) 1981-10-07
EP0036925B1 (de) 1983-05-11
ES257193Y (es) 1982-01-01
JPS56150519A (en) 1981-11-21
DE3012007A1 (de) 1981-10-08
DE3160234D1 (en) 1983-06-16
ES257193U (es) 1981-07-16

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